Kea DHCP : Use Kea Control Agent2025/03/13 |
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To start Kea control agent, it allows you to manage Kea DHCP via API. |
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| [1] | Install and Start Kea control agent. |
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root@dlp:~#
apt -y install kea-ctrl-agent curl jq
root@dlp:~#
vi /etc/kea/kea-dhcp4.conf
"Dhcp4": {
# add follows
"control-socket": {
"socket-type": "unix",
"socket-name": "/run/kea/kea4-ctrl-socket"
},
.....
.....
root@dlp:~#
vi /etc/kea/kea-ctrl-agent.conf
# line 20 : listening IP address
"http-host": "127.0.0.1",
# line 27 : listening port
"http-port": 8000,
# add follows
"authentication": {
"type": "basic",
"realm": "Kea Control Agent",
"directory": "/etc/kea",
"clients": [
{
"user": "kea-api",
"password-file": "kea-api-password"
}
]
},
root@dlp:~# echo -n password > /etc/kea/kea-api-password root@dlp:~# chown root:_kea /etc/kea/kea-api-password root@dlp:~# chmod 640 /etc/kea/kea-api-password root@dlp:~# systemctl restart kea-dhcp4-server kea-ctrl-agent |
| [2] | This is an example of using command via API. |
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root@dlp:~# curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "list-commands", "service": ["dhcp4"]}' localhost:8000 | jq
Enter host password for user 'kea-api': # enter the admin password you set above
[
{
"arguments": [
"build-report",
"config-backend-pull",
"config-get",
"config-hash-get",
"config-reload",
"config-set",
"config-test",
"config-write",
"dhcp-disable",
"dhcp-enable",
"leases-reclaim",
"list-commands",
"server-tag-get",
"shutdown",
"statistic-get",
"statistic-get-all",
"statistic-remove",
"statistic-remove-all",
"statistic-reset",
"statistic-reset-all",
"statistic-sample-age-set",
"statistic-sample-age-set-all",
"statistic-sample-count-set",
"statistic-sample-count-set-all",
"status-get",
"version-get"
],
"result": 0
}
]
root@dlp:~# curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "config-get", "service": ["dhcp4"]}' localhost:8000 | jq
Enter host password for user 'kea-api':
[
{
"arguments": {
"Dhcp4": {
"allocator": "iterative",
"authoritative": false,
"boot-file-name": "",
"calculate-tee-times": false,
"control-socket": {
"socket-name": "/tmp/kea4-ctrl-socket",
"socket-type": "unix"
},
.....
.....
root@dlp:~# curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "statistic-get-all", "service": ["dhcp4"]}' localhost:8000 | jq
Enter host password for user 'kea-api':
[
{
"arguments": {
"cumulative-assigned-addresses": [
[
11,
"2025-03-12 12:43:34.156426"
],
[
10,
"2025-03-12 12:41:33.912558"
],
[
9,
"2025-03-12 12:37:35.943072"
],
.....
.....
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